<template>
  <section>
    <!--工具条-->
    <el-col :span="24" class="toolbar" style="padding-bottom: 0px;">
      <el-form :inline="true" :model="filters">
        <el-form-item>
          <el-input v-model="filters.keyword" placeholder="关键字"></el-input>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" v-on:click="search()">查询</el-button>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" @click="handleAdd">新增</el-button>
        </el-form-item>
      </el-form>
    </el-col>

    <!--列表-->
    <el-table :data="departments" highlight-current-row v-loading="listLoading"
              @selection-change="selsChange" style="width: 100%;">
      <!--就是每行前面的那个 小框框-->
      <el-table-column type="selection" width="55">
      </el-table-column>

      <el-table-column type="index" width="60">
      </el-table-column>
      <el-table-column prop="name" label="部门名称" width="120" >
      </el-table-column>
      <el-table-column prop="sn" label="部门编号" width="100" >
      </el-table-column>
      <el-table-column prop="state" label="状态" width="100" sortable>
        <!--
          scope：它可以获取到一行的数据 通过 scope.row
        -->
        <template scope="scope">
          <span style="color:green" v-if="scope.row.state === 1">开启</span>
          <span style="color:red" v-else-if="scope.row.state === 0">禁用</span>
          <span style="color: #8c939d" v-else>未知</span>
        </template>
      </el-table-column>
      <el-table-column prop="manager.username" label="负责人" width="120" >
      </el-table-column>
      <el-table-column prop="parent.name" label="上级部门" min-width="180" >
      </el-table-column>
      <el-table-column label="操作" width="150">
        <template scope="scope">
          <el-button size="small" @click="handleEdit(scope.$index, scope.row)">编辑</el-button>
          <el-button type="danger" size="small" @click="handleDel(scope.$index, scope.row)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <!--工具条
     :disabled ： 是否展示 没有选中(数组长度为0)的时候 不能点击
                  选中了(数组长度不为0)的时候 可以点击
    -->
    <el-col :span="24" class="toolbar">
      <el-button type="danger" @click="batchRemove" :disabled="this.sels.length===0">批量删除</el-button>
      <el-pagination layout="prev, pager, next" @current-change="handleCurrentChange"
                     :current-page="currentPage" :page-size="pageSize" :total="total"
                     style="float:right;">
      </el-pagination>
    </el-col>

    <!--编辑界面-->
    <!--
    v-model：在elementUi2.x版本是双向绑定
              elementUi是1.x版本 是控制弹窗是否展示
    -->
    <el-dialog :title="title" :visible.sync="editFormVisible" :close-on-click-modal="false">
      <el-form :model="editForm" label-width="80px" :rules="editFormRules" ref="editForm">
        <el-form-item label="部门名称" prop="name">
          <el-input v-model="editForm.name" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="部门编号" prop="name">
          <el-input v-model="editForm.sn" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="状态">
          <el-radio-group v-model="editForm.state">
            <el-radio class="radio" :label="1">开启</el-radio>
            <el-radio class="radio" :label="0">禁用</el-radio>
          </el-radio-group>
        </el-form-item>

        <!--
             v-for="item in emps" : 遍历 我们后端查询出来的 emps 集合
              :label ： 选中的时候 显示的数据是什么 这个lable应该就是我们 item中的username
              :value：我们传给后端的参数 就是item中的id
          -->
        <el-form-item label="部门经理">
          <el-select v-model="value" placeholder="请选择">
            <el-option
                v-for="item in emps"
                :label="item.username"
                :value="item.id">
              <span style="float: left">{{ item.username }}</span>
              <span style="float: right; color: #8492a6; font-size: 13px">{{ item.phone }}</span>
            </el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="上级部门">
          <el-cascader
              v-model="editForm.parentId"
              :options="options"
              :props="{
              checkStrictly: true,
              value:'id',
              label:'name'
              }"
              clearable></el-cascader>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click.native="editFormVisible = false">取消</el-button>
        <el-button type="primary" @click.native="editSubmit" :loading="editLoading">提交</el-button>
      </div>
    </el-dialog>

  </section>
</template>

<script>
import util from '../../common/js/util'
//import NProgress from 'nprogress'
import {
  getDepartmentListPage,
  removeDepartment,
  batchRemoveDepartment,
  editDepartment,
  addDepartment
} from '../../api/api';

export default {
  data() {
    return {
      title:'',
      filters: {
        keyword: ''
      },
      departments: [],
      total: 0,
      pageSize:5,
      currentPage:1,
      listLoading: false,
      sels: [],//列表选中列

      editFormVisible: false,//编辑界面是否显示
      editLoading: false,
      editFormRules: {
        name: [
          {required: true, message: '请输入姓名', trigger: 'blur'}
        ]
      },
      //编辑界面数据
      editForm: {
        id:null,
        sn:'',
        name:'',
        state:1,
        managerId:null,
        parentId:null
      },
    }
  },
  methods: {
    search(){
      this.currentPage = 1;
      this.getDepartments();
    },
    handleCurrentChange(val) {
      this.currentPage = val;
      this.getDepartments();
    },
    //获取部门列表
    getDepartments() {
      // para 对象
      let para = {
        pageSize: this.pageSize,
        currentPage:this.currentPage,
        keyword: this.filters.keyword
      };
      // 开启列表忙等
      this.listLoading = true;
      // 我们要发送Axios请求
      this.$http.post("/dept", para)
          .then(result => {
            // 进到这里面来 肯定是请求成功的
            this.listLoading = false;
            this.departments = result.data.rows;
            this.total = result.data.totals;
          })
          .catch(result => {
            // 报错了的 请求失败
            this.$message({
              message: '网络异常，请稍后重试！',
              type: 'error'
            });
          })
    },
    //删除   row：代表当前行的数据
    handleDel: function (index, row) {
      this.$confirm('确认删除该记录吗?', '提示', {
        type: 'warning'
      }).then(() => {
        this.listLoading = true;
        // 就是我们数据库的id
        this.$http.delete("/dept/"+row.id)
            .then(result=>{
              // 一定是删除成功
              this.listLoading = false;
              this.$message({
                message: result.data.msg,
                type: 'success'
              });
              // 刷新一下列表 是否跳转到第一页 你们自己玩
              this.currentPage = 1;
              this.getDepartments();
            })
            .catch(result=>{
              // 1.未删除成功  或者说请求失败了
              // 2.删除成功后 controller 里面抛了异常
              this.$message({
                message: result.data.msg,
                type: 'error'
              });
            })
      }).catch(() => {
        // 取消走这里

      });
    },
    //显示编辑界面
    handleEdit: function (index, row) {
      this.editFormVisible = true;
      this.title = "编辑"
      this.editForm = Object.assign({}, row);
    },
    //显示新增界面
    handleAdd: function () {
      this.editFormVisible = true;
      this.title = "新增"
      // 是将表单 置空
      this.editForm = {
        id:null,
        sn:'',
        name:'',
        state:1,
        managerId:null,
        parentId:null
      };
    },
    //编辑
    editSubmit: function () {
      this.$refs.editForm.validate((valid) => {
        if (valid) {
          this.$confirm('确认提交吗？', '提示', {}).then(() => {
            this.editLoading = true;
            //NProgress.start();
            let para = Object.assign({}, this.editForm);
            para.birth = (!para.birth || para.birth == '') ? '' : util.formatDate.format(new Date(para.birth), 'yyyy-MM-dd');
            editDepartment(para).then((res) => {
              this.editLoading = false;
              //NProgress.done();
              this.$message({
                message: '提交成功',
                type: 'success'
              });
              this.$refs['editForm'].resetFields();
              this.editFormVisible = false;
              this.getDepartments();
            });
          });
        }
      });
    },
    selsChange: function (sels) {
      this.sels = sels;
    },
    //部门经理
    getEmps(){
      this.$http.get("/emp")
      .then(result=>{
        this.emps=result.data
      })
    },
    getDeptTree(){
      this.$http.get("/dept/tree")
      .then(result=>{
        this.options=result.data
      })
    },

    //批量删除
    batchRemove: function () {
      // 类似于stream流 将数组中的id 封装成数组
      var ids = this.sels.map(item => item.id);
      this.$confirm('确认删除选中记录吗？', '提示', {
        type: 'warning'
      }).then(() => {
        this.listLoading = true;
        // 发送请求
        this.$http.patch("/dept",ids)
            .then(result=>{
              this.listLoading = false;
              this.$message({
                message: result.data.msg,
                type: 'success'
              });
              // 刷新一下列表 是否跳转到第一页 你们自己玩
              this.currentPage = 1;
              this.getDepartments();
            })
            .catch(result=>{
              this.$message({
                message: result.data.msg,
                type: 'error'
              });
            })
      }).catch(() => {

      });
    }
  },
  mounted() {
    this.getDepartments();
    this.getEmps();
    this.getDeptTree();
  }
}

</script>

<style scoped>

</style>